Valve



Aug. 21, 1923. 1,465,844

' W. F. DURYEA VALVE Filed Dec. 24. 1921 WITNESSES O :LVVE/VTOR 1 I q 5? ATTORNEYS OFFICE.

WILLI'. DUBYEA, 0F EACKENSACK, NEW JERSEY.

VALVE.

Application filed December 24, 1921. Serial No. 524,735.

To all whom it may concern:

Be it known that I, WILLIAM F. DURYEA, a citizen of the United States, and a resident of Hackensaok, in the county of Bergen and State of New Jersey, have invented a new and Improved Valve, of which the following is a full, clear, and exact description.

, This invention relates to improvementsin valves, particularly to air valves of that class which are intended primarily for use in connection with pneumatic tires.

An object of this invention is to provide a valve of this character in which an improved means is provided for holding the valve stem against turning so that the valve will always seat in the same place; to provide improved means for removing or adjusting the valve, and to provide a novel form of locking means for positively retaining the valve in tightly closed position.

Further objects are to. rovide a valve of this character, which Wlll be simple and practical in construction, stron durable and efiicient in use, and comparatively inexpensive to manufacture.

With these and other objects in view, the invention consists in certain novel features of construction and combinations and arrangements of parts as will be more fully hereinafter described and pointed. out in the claims.

In the accompanying drawings- Figure 1 is a view in longitudinal section through a valve sleeve and dust cap show in my improved valve in applied position;

i igure 2 is a similar view with parts broken away and in section to illustrate the interior construction of the valve;

Fi ure 3 is a view in transverse section on the line 3-3 of Figure 1; and

Figure 4 is a similar view on the line 44 of F1 ure 2.

Re erring in detail to the drawings, I have used the reference numeral 1 to designate the usual type of exteriorly threaded valve sleeve which may have one end secured to and communicating with an inner tube of an automobile tire. The air passage 2 which is provided in the sleeve is enlarged near the upper end of the sleeve, as indicated at 3, to accommodate my improved valve and this passage includes a threaded portion 4 adjacent its upper end.

5 represents the body of my improved air valve. The body is externally screw threaded, as indicated at 6, so that it may be conveniently screwed intothe threaded upper end of the passage 2. The body is annularly grooved to accommodate a packin ring 7 of any approved material, WhlCl tightly fits the passage and an integral valve seat 8 is formed at the lower end of the body. 7

A substantially T-shaped valve stem 9 extends through the body 5 of the valve and the widened upper end 10 of the stem rides in vertical slots 11 in the valve body. These slots 11 which receive the extensions 10 of the stem serve to hold the valve stem against turning and compel the rubber valve 12 carried by the lower end of the stem to seat at all times in exactly the same position upon the seat 8. A coiled expansion spring 13 around the valve stem 9 between the exten- S1011 10 and an internal shoulder 14 in the valve body 5 serves to maintain the valve 12 seated at all times upon the seat 8.

A nut 15 is formed with a threaded socket 16 adapted to receive a screw threaded extension 17 which forms a continuation of the upper end of the valve stem. This nut is formed with a shoulder 18 which seats upon the top of the sleeve 1 and is also formed upon its upper face with a longitudinally slotted tubular extension 19. for a purpose which will hereinafter appear. A gasket 21 is fitted within the shoulder 18 to insure an airtight closure. The usual dust cap 20 is of course used to conceal the arts hereinbefore described and exclude interior of the valve.

The operation of the device is as follows: When it becomes desirable to pump up a tube, the nut 15 is removed and any suitable coupling connected to an air hose 1S slipped on over the top of the sleeve 1. This coupling will enga e with the threaded extension 17 of the va ve stem 9 to positively open the valve and retain the same in open position while air is being pumped in. The engagement of the T-shaped extensions 10 with the lower ends of the slots 11 prevents overco'mpression of the spring while a tire is being inflated. When the nozzle or other connection is removed, the spring 13 will seat the valve 12 in the proper position since the valve stem is held against turning in the manner hereinbefore noted. In order to more securely seal the valve against leaka e, the nut 15 is again screwed on, the threa ed socket 17 engaging the threaded extension 16 of the valve stem and pulling the valve stem upwardly until turning movement of the nut is limited by the engagement of the lower end of the nut with the T-shaped extension 10 of the stem, This upward pull on the valve stem tends to more firmly) seat the valve 12. Should it become desira le to adjust the valve, it is merel necessary to reverse the nut 15 inserting t e tubular extension 19 into the sleeve, until the extensions 10 are received b the slots in the extension 19. Turning of the nut will thus efiect turning of the valve body 5 through the medium of the lugs or extensions 10. In removing the valve from the sleeve, should the same become out of order the same method is used, or else the valve stem may be pulled out and the end of a screw driver inserted in the slots 11 to unscrew the valve body.

The above described construction entirely does away with the lugs usually used with air valves to efiect removal and adjustment of the same. The insertion of a tool to turn the older types of valves usually results in breaking or rounding OK the lugs and it was very often necessary to drill the valves out of a sleeve after they had become worn. M invention entirely overcomes this diflicul ty since the .valve may be very quickly removed from the sleeve.

Although l have illustrated one of the preterred embodiments of my invention, it will be apparent that various slight changes and alterations might be made in the general ineaeee form and arrangement of the parts described without departing from the invention, and

-hence I do not wish to limit myself to the precise details set forth, but shall consider myself at'liberty to make such slight changes and alterations as fairly fall within the spirit and scope of the appended claims.

I claim:

1. The combination with a tubular member having a threaded terminal portion, of a body threaded into said tubular member and having a valve seat on the lower end thereof andhaving its rear end formed with oppositely located slots, a valve arranged in advance of said seat for engaging the same and having a stem passing upwardly through the body, the rear portion of said stem being flattened and formed with lateral extensions slidably received in said slots, whereby the valve is held against turning, the rear terminal of said stem being threaded, a nut having a threaded socket to receive the threaded terminal portion of said stem, said nut being formed with a shoulder to engage the tubular member whereb to seat the valve, and a cap threaded on sai tubular member.

2. The construction set forth in claim 1, and a coiled spring confined between said extensions and a portion of said body for urging the valve to its seated position.

WILLIAM F. DURYEA. I 

